Support cushion for use as chair backrest or chair seat

ABSTRACT

A support cushion for use as a chair backrest or chair seat of a chair includes an outer frame, an inner strip inserted into an insertion groove of the outer frame and having a plurality of second hook portions engaged with a plurality of first hook portions of the outer frame respectively, and a mesh fabric sewed to the inner strip. By this way, the support cushion can be assembled quickly and have a smooth appearance after assembled.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates generally to a chair and moreparticularly, to a support cushion that can be used as a chair backrestor chair seat of the chair.

2. Description of the Related Art

The back or seat of a conventional chair is generally made of foamcovered with leather to provide sitting comfort. Because of lack ofventilation of the leather-covered foam, a user may feel muggy whensitting on the conventional chair for a long time. In order to solvethis problem, a breathable mesh fabric is widely used to substitute forthe leather-covered foam.

When the mesh back or seat of the chair is manufactured, a plurality ofscrews are fastened to an outer frame through a mesh fabric and an innerstrip for assembling the outer frame, the inner strip and the mesh striptogether. However, it is inconvenient for a manufacturer to fasten thescrews one by one; and further, after fastened to the outer frame, thescrews will be exposed outside to contribute to the disproportionateappearance of the chair and increase risk of damaging the user's hand.Therefore, it is desired to provide an improved mesh back or seat for achair.

SUMMARY OF THE INVENTION

The present invention has been accomplished in view of the above-notedcircumstances. It is therefore the primary objective of the presentinvention to provide a support cushion for a chair backrest or chairseat, which is easy to be assembled and has a smooth appearance.

To achieve the above-mentioned objective, the support cushion providedby the present invention comprises an outer frame having an insertiongroove extending along an edge thereof and a plurality of first hookportions spacedly located in the insertion groove, an inner stripinserted into the insertion groove of the outer frame and having aplurality of second hook portions engaged with the first hook portionsof the outer frame respectively, and a mesh fabric having an edgethereof connected with the inner strip. By means of the engagementbetween the first hook portions of the outer frame and the second hookportions of the inner strip, the support cushion of the presentinvention is assembled easily, and provided with a smooth appearanceafter assembled.

Further scope of applicability of the present invention will becomeapparent from the detailed description given hereinafter. However, itshould be understood that the detailed description and specificexamples, while indicating preferred embodiments of the invention, aregiven by way of illustration only, since various changes andmodifications within the spirit and scope of the invention will becomeapparent to those skilled in the art from this detailed description.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention will become more fully understood from thedetailed description given herein below and the accompanying drawingswhich are given by way of illustration only, and thus are not limitativeof the present invention, and wherein:

FIG. 1 is a perspective view of a chair equipped with a support cushionin accordance with a preferred embodiment of the present invention;

FIG. 2 is a perspective view of a support cushion in accordance with thepreferred embodiment of the present invention;

FIG. 3 is an exposed view of a support cushion in accordance with thepreferred embodiment of the present invention; and

FIG. 4 is a cross-sectional view of a part of a support cushion inaccordance with the preferred embodiment of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

Referring to FIGS. 1 and 2, a support cushion 20 provided by a preferredembodiment of the present invention can be used as a chair backrest orchair seat of a chair 10. For concise illustration of the presentinvention, the support cushion 20 is realized as the chair backrest inthis embodiment. As shown in FIG. 3, the support cushion 20 comprises anouter frame 30, an inner strip 40, and a mesh fabric 50.

The outer frame 30 includes a frame body 31 and a plurality of fasteners36. The frame body 31 has an insertion groove 32 extending along an edgethereof, and a plurality of retaining portions 34 spacedly arrangedalong the edge of the insertion groove 32. The fasteners 36 each arefastened to one of the retaining portions 34 by two screws 362 and eachhave a first hook portion 38 located in the insertion groove 32, asshown in FIG. 4.

The inner strip 40 is inserted into the insertion groove 32 of the outerframe 30 and provided with a plurality of second hook portions 42engaged with the first hook portions 38 of the outer frame 30respectively, as shown in FIG. 4.

The mesh fabric 50 has a periphery edge thereof sewed to the inner strip40 to provide sufficient support for a user by means of its elasticityas well as breathable and comfortable function to a user.

As indicated above, when assembling the inner strip 40 with the outerframe 30, a manufacturer inserts the inner strip 40 into the insertiongroove 32 of the outer frame 30, and then forces the second hookportions 42 of inner strip 40 and the first hook portions 38 of theouter frame 30 to be engaged with each other, thereby finishing theassembly of the support cushion 20 of the present invention. Thus it canbe seen that the support cushion 20 of the present invention is quickand easy to be assembled, and provides a smooth appearance by hiding thefasteners 36 inside the outer frame 30 after assembled. On the otherhand, a protecting strip 60 can be attached to the outer frame 30 alongthe edge of the insertion groove 32 and located between the mesh fabric50 and the fasteners 36 for preventing the mesh fabric 50 from being cutby the screws 362.

The invention being thus described, it will be obvious that the same maybe varied in many ways. Such variations are not to be regarded as adeparture from the spirit and scope of the invention, and all suchmodifications as would be obvious to one skilled in the art are intendedto be included within the scope of the following claims.

What is claimed is:
 1. A support cushion comprising: an outer framehaving an insertion groove extending along an edge thereof, and aplurality of first hook portions located in the insertion groove; aninner strip inserted into the insertion groove of the outer frame andhaving a plurality of second hook portions engaged with the first hookportions of the outer frame respectively; and a mesh fabric having anedge thereof connected with the inner strip.
 2. The support cushion ofclaim 1, wherein the outer frame comprises a frame body having theinsertion groove and a plurality of retaining portions spacedly arrangedalong an edge of the insertion groove, and a plurality of fastenersrespectively fastened to the retaining portions and each having one saidfirst hook portion.
 3. The support cushion of claim 2, furthercomprising a protecting strip attached to the outer frame along the edgeof the insertion groove and located between the mesh fabric and thefasteners.